CN217582670U

CN217582670U - Adjusting device for rolling angle of TBM (tunnel boring machine) pulley

Info

Publication number: CN217582670U
Application number: CN202123246591.5U
Authority: CN
Inventors: 黄江帆; 安仓
Original assignee: China Railway 18th Bureau Group Co Ltd
Current assignee: China Railway 18th Bureau Group Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-10-14
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a TBM coaster roll angle's adjusting device relates to TBM coaster technical field. The tunnel boring machine comprises a bracket, wherein a TBM tackle is connected to the bracket, the bracket comprises two first supports which are arranged in parallel, the first supports are in contact with the wall of a tunnel, a plurality of second supports are connected between the two first supports, four oil cylinders are fixedly connected to the lower portion of the bracket, the oil cylinders are embedded hydraulic cylinders, the top portions of the oil cylinders are fixedly connected with the first supports, wear-resisting plates are arranged at the bottoms of the oil cylinders, and the four oil cylinders are respectively positioned at four corners of the bracket; the front end and the tail end of the bracket are respectively and fixedly connected with a traction piece, and the trailer drags the bracket to move forwards through the traction pieces so as to drive the TBM tackle to move forwards. The utility model discloses the flexible volume of accessible adjustment hydro-cylinder reaches adjustment roll angle deflection volume, satisfies the adjustment accuracy requirement to can adjust many times, adjust repeatedly, greatly reduced is for the work load and the adjustment degree of difficulty of adjustment roll angle, and the adjustment accuracy is high, and the adjustment process is safe, simple and convenient, swift.

Description

Adjusting device for rolling angle of TBM (tunnel boring machine) pulley

Technical Field

The utility model belongs to the technical field of the TBM coaster, more specifically say, relate to a TBM coaster roll angle's adjusting device.

Background

At present, in the tunneling process of a TBM (Tunnel Boring Machine), a pulley overcomes the sliding friction force between the pulley and a cavern arch frame along with a TBM main Machine to move forwards. In a small or micro TBM, a pulley and a trailer are generally adopted in a back matching mode, the pulley slides on the tunnel wall, the trailer runs on a track, the pulley is influenced by factors such as uneven weight distribution, geological factors, tunneling parameters and the like to generate rolling angle deflection, the pulley is easy to deflect and deform, and corresponding equipment on the pulley is damaged. Due to the narrow space of a small or micro TBM pulley, the left side and the right side of the pulley are usually added with or subtracted from counterweights, a guide chain is used for adjusting a rolling angle, the adjusting efficiency is low, the adjusting precision is low, and the construction progress is seriously restricted.

The utility model discloses a utility model patent that grant publication number is CN214035673U discloses a TBM coaster mechanism, and TBM coaster mechanism includes frame, track running gear and retractable wheel components, track running gear all sets up to a plurality ofly with wheel components to along fore-and-aft direction cross arrangement in the bottom of frame. When encountering obstacles such as an arch and the like, the crawler traveling assembly replaces the roller assembly to climb over the obstacles in the original advancing process, thereby reducing the propelling force loss caused by the friction force of the pulley and the arch and improving the construction efficiency. The tackle mechanism cannot solve the problem of deflection of a tackle rolling angle.

Disclosure of Invention

The utility model aims to solve the technical problem that a TBM coaster roll angle's adjusting device is provided, the flexible volume of accessible adjustment hydro-cylinder reaches adjustment roll angle deflection volume, satisfies the adjustment required precision.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: the device for adjusting the rolling angle of the TBM pulley comprises a bracket, wherein the bracket is connected with the TBM pulley, the bracket comprises two first supports which are arranged in parallel along the length direction of a tunnel, the first supports are in contact with the wall of the tunnel, a plurality of second supports are fixedly connected between the two first supports, the lower part of the bracket is fixedly connected with four oil cylinders, the oil cylinders are embedded hydraulic cylinders, the top parts of the oil cylinders are fixedly connected with the first supports, wear-resistant plates are arranged at the bottom parts of the oil cylinders, and the four oil cylinders are respectively positioned at four corners of the bracket; and the front end and the tail end of the bracket are respectively and fixedly connected with a traction piece, and the trailer drags the bracket to move forwards through the traction pieces so as to drive the TBM tackle to move forwards.

Preferably, a friction part is arranged below the first support, the cross section of the friction part is an arc-shaped surface, and the arc-shaped surface is matched with the shape of the tunnel wall and is in contact connection with the tunnel wall.

Preferably, the bottom surface of the wear-resisting plate is an arc-shaped surface and is consistent with the radian of the arc-shaped surface of the friction part, and the bottom surface of the wear-resisting plate is in contact connection with the tunnel hole wall.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the oil cylinder can adjust the telescopic amount of the oil cylinder, so that the rolling angle deflection is adjusted, the adjustment precision requirement is met, the oil cylinder can be adjusted for multiple times, repeated adjustment is realized, the workload and the adjustment difficulty of manually adjusting the rolling angle are greatly reduced, the adjustment precision is high, and the adjustment process is safe, simple, convenient and quick.

Drawings

FIG. 1 is a front view schematic diagram of the present application;

FIG. 2 is a schematic top view of the present application;

in the figure: 1. a tunnel wall; 2. an oil cylinder; 3. wear-resisting plates, 4, friction parts; 5. a bracket; 501. a first support; 502. a second support; 6. a pulling member.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1-2, the adjusting device comprises a bracket 5, a TBM tackle is connected to the bracket 5, the bracket 5 comprises two first supports 501 arranged in parallel along the length direction of a tunnel, the first supports 501 are in contact with the tunnel wall 1, a plurality of second supports 502 are fixedly connected between the two first supports 501, four oil cylinders 2 are fixedly connected to the lower part of the bracket 5, the oil cylinders 2 are embedded hydraulic cylinders, the top parts of the oil cylinders 2 are fixedly connected with the first supports 501, wear plates 3 are arranged at the bottom parts of the oil cylinders 2, and the four oil cylinders 2 are respectively located at the four corners of the bracket 5; and the front end and the tail end of the bracket 5 are respectively fixedly connected with a traction piece 6, and the trailer drags the bracket 5 to move forwards through the traction pieces 6 so as to drive the TBM tackle to move forwards.

A friction part 4 is arranged below the first support 501, the section of the friction part 4 is an arc-shaped surface, and the arc-shaped surface is matched with the shape of the tunnel wall 1 and is in contact connection with the tunnel wall 1.

The bottom surface of the wear-resisting plate 3 is an arc-shaped surface and is consistent with the radian of the arc-shaped surface of the friction part 4, and the bottom surface of the wear-resisting plate 3 is in contact connection with the tunnel hole wall 1.

Two friction parts 4 may be provided on each first support 501, and an inline cylinder may be provided inside each friction part 4, or the inline cylinder may be provided separately from the friction parts 4. When the device works, the specific steps are as follows:

the first step is as follows: the 4 oil cylinders 2 extend out simultaneously;

the second step: when the negative rolling angle is adjusted, the left oil cylinder 2 in the tunneling direction is contracted, and the left sliding frame of the scooter is completely retracted to be tightly attached to the tunnel wall; when the positive rolling angle is adjusted, the oil cylinder 2 on the right side in the tunneling direction is contracted, and the sliding frame on the right side of the sliding trolley is completely retracted to be tightly attached to the tunnel wall;

the third step: the right oil cylinder 2 is contracted until the right pulley sliding frame is tightly attached to the wall of the hole, and one-time negative rolling angle adjustment is completed; and (4) contracting the left oil cylinder 2 to the left pulley sliding frame to be tightly attached to the wall of the hole, thereby completing one-time positive roll angle adjustment.

The device can be adjusted for many times and adjusted repeatedly, the workload and the adjusting difficulty of manually adjusting the roll angle are greatly reduced, the adjusting precision is high, and the adjusting process is safe, simple, convenient and quick.

Above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be included in the protection scope of the present invention.

Claims

1. The adjusting device for the rolling angle of the TBM pulley is characterized by comprising a bracket (5), wherein the bracket (5) is connected with the TBM pulley, the bracket (5) comprises two first supports (501) which are arranged in parallel along the length direction of a tunnel, the first supports (501) are in contact with the wall (1) of the tunnel, a plurality of second supports (502) are fixedly connected between the two first supports (501), the lower part of the bracket (5) is fixedly connected with four oil cylinders (2), the oil cylinders (2) are embedded hydraulic cylinders, the top parts of the oil cylinders (2) are fixedly connected with the first supports (501), wear-resisting plates (3) are arranged at the bottoms of the oil cylinders (2), and the four oil cylinders (2) are respectively positioned at four corners of the bracket (5); the front end and the tail end of the bracket (5) are respectively fixedly connected with a traction piece (6), and the bracket (5) is dragged to move forwards by the trailer through the traction pieces (6) so as to drive the TBM tackle to move forwards.

2. The adjusting device for the rolling angle of the TBM tackle as claimed in claim 1, wherein a friction part (4) is arranged below the first support (501), the cross section of the friction part (4) is an arc-shaped surface, and the arc-shaped surface is matched with the shape of the tunnel wall (1) and is in contact connection with the tunnel wall (1).

3. The adjusting device for the rolling angle of the TBM pulley is characterized in that the bottom surface of the wear-resistant plate (3) is an arc surface and has the same radian with the arc surface of the friction part (4), and the bottom surface of the wear-resistant plate (3) is in contact connection with the tunnel hole wall (1).